Patents by Inventor Manfred Sawitzki

Manfred Sawitzki has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and bending press for bending boundary edge of a sheet for shaping into an open seam tube
    Patent number: 7735348
    Abstract: The invention relates to a method and a bending press for bending the boundary edge of a planar sheet for shaping into an open seam tube, with an upper tool shaped to correspond to the bend radius to be achieved and an opposed lower tool which may be displaced vertically, between which the boundary edges of the sheet which is clamped in place in the press frame may be bent into the desired boundary contour. The lower tool is provided with a straight working surface and mounted to pivot about a rotational axis whereby the pivot range is at least so large that a permanent planar contact between the working surface of the lower tool and the bottom face of the boundary edge is possible during the bending.
    Type: Grant
    Filed: October 10, 2005
    Date of Patent: June 15, 2010
    Assignee: Euroipe GmbH
    Inventors: Manfred Sawitzki, Johannes Gross-Weege, Wolfgang Hartjenstein, Ludwig Oesterlein, Manfred Lenuck
  • Method and Bending Press for Bending Boundary Edge of a Sheet for Shaping Into an Open Seam Tube
    Publication number: 20070261464
    Abstract: The invention relates to a method and a bending press for bending the boundary edge of a planar sheet for shaping into an open seam tube, with an upper tool shaped to correspond to the bend radius to be achieved and an opposed lower tool which may be displaced vertically, between which the boundary edges of the sheet which is clamped in place in the press frame may be bent into the desired boundary contour. The lower tool is provided with a straight working surface and mounted to pivot about a rotational axis whereby the pivot range is at least so large that a permanent planar contact between the working surface of the lower tool and the bottom face of the boundary edge is possible during the bending.
    Type: Application
    Filed: October 10, 2005
    Publication date: November 15, 2007
    Inventors: Manfred Sawitzki, Johannes Gross-Weege, Wolfgang Hartjenstein, Ludwig Oesterlein, Manfred Lenuck